3D Printer  hotend Parts PTFE Tube Teflon Pipe Bowden Extruder 1.75mm ID2mm OD4mm 1M 2M with Cutter and Cable tie 3d printer parts cyclops 2 in 1 out 2 colors hotend 0 4 1 75mm 12v 24v fan bowden with titan bulldog extruder multi color nozzle